Percona Server for MongoDB 3.2.0-1.0 - data that does not fit in RAM

Setup

Client and server on different (equal) machines.
Client sofwware is sysbench (https://github.com/Percona-Lab/sysbench/tree/dev-mongodb-support).
CPU: 56 logical CPU threads (Intel® Xeon® CPU E5-2683 v3 @ 2.00GHz).
Memory: 20GB (limited via cgroup).
Disk: Seagate Enterprise Performance 10K HDD (512e) in RAID1
sysbench with mongodb support, 16 collections x 60M documents (~200G uncompressed), uniform and pareto distributions.

Throughput per threads and workload

plot of chunk global

Throughput per threads and workload, summary for engine

plot of chunk engines

Throughput per threads and workload, details.

Throughput per threads and workload, PerconaFT

plot of chunk ft

Throughput per threads and workload, WiredTiger

plot of chunk wt

Throughput per threads and workload, RocksDB

plot of chunk rocks